Better Mind Flayer

Tentacles. Melee Weapon Attack: +7 to hit, reach 5 ft., one creature. Hit: 15(2D10+4) psychic damage. If the target is medium or smaller, it is grappled, and must make a DC 17 Intelligence saving throw or be stunned until this grapple ends.

 

Extract Brain. Melee Weapon Attack: +7 to hit, reach 5 ft., one incapacitated humanoid that is grappled by the mind flayer. Hit: 55 (10D10) piercing damage. If this damage reduces the target to 0 hit points, the target dies from the mind flayer extracting their brain.

 

Enslave (3/Day). The mind flayer Targets one creature it can see within 30 ft. of it. The target must succeed on a DC 14 Wisdom saving throw or be magically Charmed by the mind flayer until the mind flayer dies or until it is on a different plane of existence from the target. The Charmed target is under the mind flayer's control and can't take Reactions, and the mind flayer and the target can communicate telepathically with each other over any distance. Whenever the Charmed target takes damage, the target can repeat the saving throw. On a success, the Effect ends. No more than once every 24 hours, the target can also repeat the saving throw when it is at least 1 mile away from the mind flayer.

 

Mind Blast (Recharge 5-6). The mind flayer magically emits psychic energy in a 60-ft cone. each creature in that area must succeed on a DC 17 Intelligence saving throw or 23 (4D8+5) psychic damage and be stunned for one minute. the creature can attempt the saving throw at the end of each turn, ending the effect on a success.